439877 (1999 XM141)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.3692232612 ± 4.49e-08
Semi-major axis (a)1.2361088574 AU ± 9.40e-10
Inclination (i)21.62274780° ± 8.91e-06
Long. of Asc. Node (Ω)72.97641246° ± 7.21e-06
Arg. of Perihelion (ω)105.78877635° ± 1.07e-05
Mean Anomaly (M)264.67711196° ± 9.03e-06
Mean Motion (n)0.7171783960°/day ± 8.18e-10
Perihelion dist (q)0.77970871 AU ± 5.55e-08
Aphelion dist (Q)1.69250900 AU ± 5.55e-08
Orbital Period1.37431117 yr ± 1.57e-09
Physical Parameters
H (abs. magnitude)19.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.434″
Uncertainty0
Orbit TypeApollo
MOID0.034497 AU
Observations Used225
Oppositions7
Arc Total1999-2026
First Observation Used1999-12-13
Last Observation Used2026-01-10
Observations (266)
Date Type RA Dec Mag Band Observatory
1999-12-13 10:16:55 C 11 15 49.15 +44 08 16.8 18.0 a 704
1999-12-13 10:37:57 C 11 16 03.22 +44 09 08.1 18.0 a 704
1999-12-13 10:59:04 C 11 16 17.21 +44 09 59.0 18.4 a 704
1999-12-13 11:20:14 C 11 16 31.30 +44 10 48.9 18.2 a 704
1999-12-13 11:41:22 C 11 16 45.31 +44 11 39.9 18.2 a 704
1999-12-14 10:29:38 C 11 32 32.88 +45 01 25.2 18.1 a 704
1999-12-14 10:51:30 C 11 32 47.99 +45 02 11.1 18.6 a 704
1999-12-14 11:13:31 C 11 33 03.26 +45 02 56.9 18.7 a 704
1999-12-14 11:35:49 C 11 33 18.59 +45 03 42.1 18.3 a 704
1999-12-14 11:58:16 C 11 33 34.23 +45 04 28.5 18.4 a 704
1999-12-16 10:45:33 C 12 07 31.01 +46 20 39.3 18.3 a 704
1999-12-16 11:27:58 C 12 08 01.93 +46 21 34.3 18.8 a 704
1999-12-16 11:49:00 C 12 08 17.12 +46 22 01.9 18.8 a 704
1999-12-17 03:12:53 C 12 19 44.11 +46 38 32.0 c 046
1999-12-17 03:16:09 C 12 19 46.42 +46 38 34.7 c 046
1999-12-17 03:20:50 C 12 19 49.90 +46 38 37.7 c 046
1999-12-17 03:22:07 C 12 19 50.94 +46 38 40.7 c 046
1999-12-17 03:23:30 C 12 19 51.99 +46 38 42.1 c 046
1999-12-17 03:24:47 C 12 19 53.00 +46 38 43.2 c 046
1999-12-17 03:26:43 C 12 19 54.37 +46 38 45.6 c 046
1999-12-17 04:18:31 C 12 20 32.16 +46 39 36.7 118
1999-12-17 04:22:16 C 12 20 34.94 +46 39 40.1 118
1999-12-17 04:24:50 C 12 20 36.88 +46 39 42.5 118
1999-12-17 10:22:58 C 12 25 06.20 +46 44 58.7 18.7 a 704
1999-12-17 10:43:54 C 12 25 21.57 +46 45 17.1 19.0 a 704
1999-12-17 11:05:29 C 12 25 37.53 +46 45 36.1 18.8 a 704
1999-12-17 11:26:26 C 12 25 52.87 +46 45 55.1 18.5 a 704
1999-12-17 11:47:46 C 12 26 08.55 +46 46 13.4 18.3 a 704
1999-12-19 10:12:05 C 13 00 41.60 +47 03 44.8 17.8 a 704
1999-12-19 10:34:40 C 13 00 57.99 +47 03 44.8 18.5 a 704
1999-12-19 10:56:59 C 13 01 14.30 +47 03 47.1 18.4 a 704
1999-12-19 11:19:12 C 13 01 30.47 +47 03 47.8 19.0 a 704
1999-12-19 11:41:34 C 13 01 46.59 +47 03 48.7 18.8 a 704
1999-12-20 10:51:49 C 13 18 38.37 +46 57 56.6 a 704
1999-12-20 11:13:45 C 13 18 53.97 +46 57 49.3 a 704
1999-12-20 11:35:59 C 13 19 09.62 +46 57 40.8 a 704
1999-12-20 11:58:02 C 13 19 25.35 +46 57 32.0 a 704
1999-12-20 12:19:59 C 13 19 40.65 +46 57 23.7 a 704
2010-11-30 09:50:51 C 08 44 10.19 +28 24 57.9 19.0 c 704
2010-11-30 10:09:36 C 08 44 15.39 +28 25 54.8 19.4 c 704
2010-11-30 10:28:17 C 08 44 20.56 +28 26 49.4 19.5 c 704
2010-11-30 10:46:58 C 08 44 25.80 +28 27 45.1 19.5 c 704
2010-12-01 09:00:24 C 08 51 04.36 +29 35 10.3 o H11
2010-12-01 09:01:53 C 08 51 04.73 +29 35 15.2 o H11
2010-12-01 09:03:18 C 08 51 05.29 +29 35 20.7 o H11
2010-12-01 09:04:41 C 08 51 05.65 +29 35 24.5 r 703
2010-12-01 09:04:43 C 08 51 05.63 +29 35 24.3 o H11
2010-12-01 09:06:05 C 08 51 06.11 +29 35 29.7 o H11
2010-12-01 09:07:27 C 08 51 06.47 +29 35 33.5 o H11
2010-12-01 09:13:01 C 08 51 08.13 +29 35 50.2 r 703